Ejection device for production of polyurethane foam board

Abstract

The utility model relates to the technical field of foam board production equipment, in particular to a polyurethane foam board production ejection device which comprises a mold box arranged on a support and a box cover arranged on the mold box in a covering mode, a plurality of installation holes are formed in the bottom of the mold box in an array mode, a push table is embedded in the installation holes, and a sliding rod is arranged at the bottom of the push table. The sliding rod is vertically arranged on the support in a sliding mode. An air channel is coaxially formed in the sliding rod, a plurality of air holes are formed in the sliding rod, and the air holes communicate with the air channel; the box cover is pushed to overturn backwards through two second push cylinders until a rolling shaft pushes a connecting base to move forwards horizontally, one end, close to the connecting base, of a second push rod rotates upwards and pushes the connecting base to move upwards, and the connecting base pushes the foam plate out of the mold box upwards through a plurality of sliding rods and a push table; the power source can also be used for ejecting the foam board; the problems that it is difficult to directly take out the foam board from the mold box, and efficiency is low are solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a foam board production equipment technical field, specifically, relates to a kind of polyurethane foam board production ejection device. BACKGROUND

[0002] Polyurethane foam is with isocyanate and polyether as main raw material, under the action of foaming agent, catalyst, flame retardant and multiple kinds of adjuvants, by special equipment mixing, high-pressure spray site foaming and the high molecular polymer of becoming.In polyurethane foam board production, usually, foaming raw material is injected into mold box, and corresponding lid is covered on mold box, after waiting for foaming reaction to end, lid is opened and foam board can be taken out from mold box.

[0003] When polyurethane foam board needs to be taken out after foaming, since foam board is embedded with mold box inner cavity, when pulling out foam board, there is negative pressure between foam board and mold cavity, foam board needs to slowly translate along the direction of mold cavity, once foam board is inclined or unevenly stressed, friction force is generated with mold cavity, and then there are problems such as difficulty in directly taking out foam board from mold box and low efficiency. SUMMARY

[0004] The utility model discloses a kind of polyurethane foam board production ejection device, which solves the problem of difficulty in directly taking out foam board from mold box and low efficiency.

[0005] The utility model discloses the following technical scheme realizes: a kind of polyurethane foam board production ejection device, including the mold box being set on support and the box cover being covered on the mold box, the box bottom of the mold box is arrayed with several mounting holes, the push table is embedded in the mounting hole and is arranged, the push table bottom is provided with slide rod, the slide rod is vertically slidably arranged on the support;

[0006] Gas passage is coaxially arranged in the slide rod, several air holes are arranged on the slide rod, and several air holes are communicated with the gas passage.

[0007] Further, it also includes a jacking part, which is used to drive the slide rod to vertically slide.

[0008] Further, it also includes a mounting plate, which is vertically slidably arranged below the mold box, and the lower end of several slide rods is arranged out of the mounting plate and fixed with the mounting plate.

[0009] The jacking member comprises a connecting seat, a connecting shaft, a sliding sleeve, a first push rod, a second push rod and a driving member, a plurality of sliding sleeves are arranged on the support in a horizontal direction, a first push rod is slidably arranged in one of the sliding sleeves, one end of each of the first push rods is connected with the connecting seat, and the other end of each of the first push rods is connected with the connecting shaft;

[0010] A plurality of second push rods are arranged on the connecting shaft in a spaced manner, and two ends of each of the second push rods are hingedly connected with the connecting shaft and the mounting plate respectively; the length of the second push rod is greater than the longitudinal distance between the mounting plate and the connecting shaft;

[0011] The driving member is used to drive the connecting seat to move horizontally.

[0012] Further, the jacking member further comprises an auxiliary spring, the auxiliary spring is sleeved on the first push rod, and two ends of the auxiliary spring are respectively abutted with the connecting seat and the sliding sleeve.

[0013] Further, the driving member is a first push cylinder, the first push cylinder is fixedly arranged on the support, and the telescopic end of the first push cylinder is connected with the connecting seat.

[0014] Further, two second push cylinders are symmetrically arranged on the left and right sides of the support, the rear end of the box cover is hingedly connected with the mold box, the cylinder base of the second push cylinder is hingedly connected with the support, and the telescopic end of the second push cylinder is hingedly connected with the telescopic box cover.

[0015] Further, the driving member comprises a roller and a plurality of connecting rods, the connecting rods are arranged in parallel and in a spaced manner, one end of each of the connecting rods is connected with the box cover, and the other end of each of the connecting rods is rotatably provided with the roller, and the connecting seat is located on the movement path of the roller.

[0016] Further, a plurality of guide sleeves are arranged on the support, and one of the guide sleeves is slidably arranged with the sliding rod.

[0017] Further, the mounting hole comprises a large-diameter hole and a small-diameter hole which are in communication, and the large-diameter hole is located above the small-diameter hole.

[0018] The push table comprises a large-diameter column and a small-diameter column which are connected, the large-diameter column is located at the upper end of the small-diameter column, the large-diameter column is embedded in the large-diameter hole, the small-diameter column is embedded in the small-diameter hole, and the lower end of the small-diameter column is fixedly connected with the sliding rod.

[0019] Further, an annular mounting groove is arranged on one end of the large-diameter column close to the small-diameter column, and a sealing ring is arranged in the mounting groove.

[0020] Further, the box cover and the mold box are fixed to each other by a plurality of spring buckles.

[0021] The technical scheme of the utility model has at least the following advantages and beneficial effects:

[0022] 1. When the foam board needs to be taken out, only a plurality of slide rods need to be driven to move upward synchronously, and the foam board can be pushed out of the mold box through a plurality of push tables; in the process of upward movement of the slide rods, more and more air vents gradually pass through the mounting holes, and then the space between the bottom of the foam board and the bottom of the mold box is communicated with the outside through a plurality of air vents and air channels, air can enter the space between the foam board and the mold box from the air channels and the air vents, and then in the process of the foam board being pushed out of the mold box, no negative pressure is generated between the foam board and the mold box, and then the pushing out of the foam board is not affected.

[0023] 2. The box cover is pushed back and turned over by two second push cylinders until the roller shaft pushes the connecting seat to move horizontally forward, the second push rod rotates upward at the end close to the connecting seat and pushes the connecting seat to move upward, and the connecting seat pushes the foam board out of the mold box through a plurality of slide rods and push tables; one group of second push cylinders not only can open the box cover, but also can be used as a power source for pushing out the foam board.

[0024] 3. When the push table is embedded in the mounting hole, the small-diameter column can guide the large-diameter column to enter the large-diameter hole, and when the lower end of the large-diameter column abuts against the upper end of the small-diameter hole, i.e. the hole bottom of the large-diameter hole, a sealing position is formed, liquid leakage is prevented, and more specifically, the end of the large-diameter column close to the small-diameter column is provided with an annular mounting groove, and a sealing ring is arranged in the mounting groove; then when the push table is embedded in the mounting hole, the sealing ring seals the gap between the large-diameter column and the small-diameter hole, liquid leakage is avoided, and the leakage of foaming raw materials is prevented to affect the normal forming of the foam board. BRIEF DESCRIPTION OF DRAWINGS

[0025] In order to more clearly illustrate the technical scheme of the embodiments of the utility model, the following will briefly introduce the drawings needed to be used in the embodiments, and it should be understood that the following drawings only show some embodiments of the utility model, and should not be regarded as a limitation to the scope, and for those skilled in the art, other related drawings can also be obtained without creative labor on the basis of these drawings.

[0026] Figure 1 It is a side view structural schematic diagram of the polyurethane foam board production ejection device provided by the utility model;

[0027] Figure 2 It is a sectional view structural schematic diagram of the polyurethane foam board production ejection device provided by the utility model;

[0028] Figure 3 A cross-sectional structure schematic view of the second push cylinder after opening the box cover of the polyurethane foam board production ejection device provided by the utility model;

[0029] Figure 4 A cross-sectional structure schematic view of the second push cylinder after opening the box cover of the polyurethane foam board production ejection device provided by the utility model;

[0030] Figure 5 For Figure 4 An enlarged schematic view of structure A in the middle;

[0031] Icon: 1, support, 2, mold box, 21, mounting hole, 211, large diameter hole, 212, small diameter hole, 3, box cover, 4, push table, 41, large diameter column, 42, small diameter column, 43, mounting groove, 44, sealing ring, 5, sliding rod, 51, air duct, 52, air hole, 53, guide sleeve, 6, mounting plate, 7, jacking piece, 71, connecting seat, 72, connecting shaft, 73, sliding sleeve, 74, first push rod, 75, second push rod, 76, driving piece, 761, roller, 762, connecting rod, 77, auxiliary spring, 8, second push cylinder, 9, spring hand buckle. DETAILED DESCRIPTION

[0032] To make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be described clearly and completely below in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all the embodiments. The components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0033] Therefore, the following detailed description of the embodiments of the utility model provided in the drawings is not intended to limit the scope of the claimed utility model, but only represents selected embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of protection of the utility model.

[0034] Reference Figures 1 to 5As shown, the embodiment provides a polyurethane foam board production ejection device, which comprises a mold box 2 arranged on a support 1 and a box cover 3 arranged on the mold box 2, the mold box 2 is used for the foaming reaction of the polyurethane foam board, the rear end of the box cover 3 is hinged to the mold box 2, and when the foaming reaction is completed and the foam board needs to be taken out, the front end of the box cover 3 is directly lifted to open the box cover 3, which is convenient for subsequent taking out of the foam board; More specifically, two second push cylinders 8 are symmetrically arranged on the left and right sides of the support 1, the cylinder seat of the second push cylinder 8 is hinged to the support 1, and the extension end of the second push cylinder 8 is hinged to the telescopic box cover 3, so that when the box cover 3 needs to be opened, the two second push cylinders 8 can be directly controlled to extend, and since the rear end of the box cover 3 is hinged to the mold box 2, the box cover 3 can be controlled to be flipped backward by the two second push cylinders 8, and the flipping range is preferably not to affect the taking out of the foam board, so that the box cover 3 rotates on the mold box 2 by not less than 90°, and compared with manual flipping, the box cover 3 can be flipped by a larger angle while reducing the use of manpower. At the same time, when the box cover 3 is closed on the mold box 2, the two second push cylinders 8 can further make the box cover 3 tightly closed with the mold box 2, thereby providing a basic guarantee for forming a stable foaming space between the mold box 2 and the box cover 3.

[0035] More specifically, as shown, Figure 1 It also includes spring buckles 9, and the box cover 3 and the mold box 2 are fixed to each other by a plurality of spring buckles 9, since the foaming part in the mold box 2 will expand several times during the foaming reaction, in order to make the box cover 3 better shape the top of the foaming part, and then after the box cover 3 is arranged on the mold box 2, a plurality of spring buckles 9 located on the left and right sides and the front side of the box cover 3 are used to further fix the box cover 3 with the mold box 2, thereby further providing a basic guarantee for forming a stable foaming space between the mold box 2 and the box cover 3.

[0036] As shown, Figures 2-5As shown, the bottom array of the mold box 2 is provided with a plurality of mounting holes 21, and the push table 4 is embedded in the mounting hole 21. The bottom of the push table 4 is provided with a sliding rod 5 which is vertically slidingly arranged on the support 1. Further, a plurality of guide sleeves 53 are arranged on the support 1, one sliding rod 5 is slidingly arranged in one guide sleeve 53, and the guide sleeve 53 is used for guiding the sliding rod 5, thereby ensuring that the sliding rod 5 drives the push table 4 to move vertically. When the foam board needs to be taken out, only the sliding rod 5 needs to be driven to move upward synchronously, and the foam board can be pushed out of the mold box 2 by the push table 4. More specifically, a gas channel 51 is coaxially arranged in the sliding rod 5, a plurality of air holes 52 are arranged on the sliding rod 5, and the air holes 52 are in communication with the gas channel 51. During the upward movement of the sliding rod 5, more and more air holes 52 gradually pass through the mounting hole 21, and then the space between the bottom of the foam board and the bottom of the mold box 2 is in communication with the outside through the air holes 52 and the gas channel 51. Air can enter the space between the foam board and the mold box 2 from the gas channel 51 and the air holes 52, and then during the process of the foam board being pushed out of the mold box 2, the negative pressure between the foam board and the mold box 2 will not be generated, thereby not affecting the pushing out of the foam board.

[0037] Further, the mounting plate 6 is vertically slidingly arranged below the mold box 2, the lower end of the sliding rod 5 penetrates the mounting plate 6 and is fixed with the mounting plate 6, and then the mounting plate 6 is driven to move up and down, thereby synchronously driving the sliding rod 5 to move up and down.

[0038] More specifically, as shown, the mounting plate 6 is vertically slidingly arranged below the mold box 2, the lower end of the sliding rod 5 penetrates the mounting plate 6 and is fixed with the mounting plate 6, and then the mounting plate 6 is driven to move up and down, thereby synchronously driving the sliding rod 5 to move up and down. Figures 1-4 More specifically, as shown, the mounting plate 6 is vertically slidingly arranged below the mold box 2, the lower end of the sliding rod 5 penetrates the mounting plate 6 and is fixed with the mounting plate 6, and then the mounting plate 6 is driven to move up and down, thereby synchronously driving the sliding rod 5 to move up and down.

[0039] In specific implementation, as shown in Figures 1-4 The jacking member 7 further comprises an auxiliary spring 77, which is sleeved on the first push rod 74 and abuts against the connecting seat 71 and the sliding sleeve 73 at two ends, so that when it is needed to reset the push table 4 for the next foaming of the foam board, the push table 4 is moved downward to retreat into the mounting hole 21 under the weight of the push table 4, the sliding rod 5 and the mounting plate 6 and the elastic force of the auxiliary spring 77, at the same time, the connecting seat 71 is also moved away from the second push rod 75 and reset, facilitating the jacking of the foam board next time.

[0040] As one of the embodiments, the driving member 76 is a first push cylinder (not shown in the figure), which is fixedly arranged on the support 1 and connected with the connecting seat 71 at the telescopic end, so that the first push cylinder is arranged separately to push the connecting seat 71 to move horizontally, and the first push cylinder and the second push cylinder 8 can be selected from any one of an electric push cylinder, an air cylinder or an oil cylinder, which can be selected according to actual conditions.

[0041] As another embodiment, as shown in Figures 1-4 The driving member 76 comprises a roller 761 and a plurality of connecting rods 762, the plurality of connecting rods 762 are arranged in parallel and at intervals, one end of the plurality of connecting rods 762 is connected with the box cover 3, the other end of the plurality of connecting rods 762 is rotatably provided with the roller 761, and the connecting seat 71 is located on the moving path of the roller 761. Then, when the foaming reaction is completed and the foam board needs to be taken out, the plurality of spring buckles 9 are first released, the box cover 3 is pushed to flip backward by the two second push cylinders 8, when the box cover 3 is flipped by 90°, the roller 761 is synchronously rotated by 90°, i.e. from the horizontal state to the vertical state, at the same time, the roller 761 starts to contact with the connecting seat 71, the two second push cylinders 8 are controlled to continue to extend, the box cover 3 continues to flip to the rear side, the roller 761 pushes the connecting seat 71 to move horizontally forward, the mounting plate 6 is driven to move upward by the second push rod 75, and then the foam board is jacked out of the mold box 2 by the plurality of push tables 4.

[0042] More specifically, as shown in Figures 2-5As shown, the mounting hole 21 comprises a large-diameter hole 211 and a small-diameter hole 212 in communication, the large-diameter hole 211 is located above the small-diameter hole 212; the push table 4 comprises a large-diameter column 41 and a small-diameter column 42 in connection, the large-diameter column 41 is located at the upper end of the small-diameter column 42, the large-diameter column 41 is embedded with the large-diameter hole 211, the small-diameter column 42 is embedded with the small-diameter hole 212, and the lower end of the small-diameter column 42 is fixedly connected with the slide rod 5. In specific implementation, when the push table 4 is embedded with the mounting hole 21, the small-diameter column 42 enters the large-diameter hole 211 first to guide the large-diameter column 41 to enter the large-diameter hole 211, and meanwhile, when the lower end of the large-diameter column 41 abuts against the upper end of the small-diameter hole 212, i.e. the hole bottom of the large-diameter hole 211, it is beneficial to form a sealing position to prevent liquid leakage, and more specifically, the large-diameter column 41 is provided with an annular mounting groove 43 at one end close to the small-diameter column 42, a sealing ring 44 is arranged in the mounting groove 43, and then when the push table 4 is embedded with the mounting hole 21, the sealing ring 44 seals the gap between the large-diameter column 41 and the small-diameter hole 212 to avoid liquid leakage and prevent the foaming raw material from leaking to affect the normal forming of the foam board.

[0043] The preferred embodiments of the utility model are only used for limiting the utility model, and the utility model can have various changes and variations for the person skilled in the art. Any modification, equivalent replacement, improvement, etc. within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A polyurethane foam board production ejection device, characterized in that: It includes a mold box (2) set on a bracket (1) and a box cover (3) covering the mold box (2). The bottom of the mold box (2) is provided with a plurality of mounting holes (21). A pusher (4) is embedded in the mounting hole (21). A slide rod (5) is provided at the bottom of the pusher (4). The slide rod (5) is vertically slidably set on the bracket (1). The slide rod (5) has an air passage (51) coaxially opened inside, and the slide rod (5) has a plurality of air holes (52) connected to the air passage (51). It also includes a lifting member (7) for driving the slide bar (5) to slide vertically.

2. The polyurethane foam board production ejection device according to claim 1, characterized in that, It also includes a mounting plate (6), which is vertically slidably disposed below the mold box (2), and the lower ends of several sliding rods (5) pass through the mounting plate (6) and are fixed to the mounting plate (6); The lifting component (7) includes a connecting seat (71), a connecting shaft (72), a sliding sleeve (73), a first push rod (74), a second push rod (75), and a driving component (76). The bracket (1) is provided with a plurality of sliding sleeves (73) spaced apart along the horizontal direction. A first push rod (74) is slidably passed through one of the sliding sleeves (73). One end of each of the plurality of first push rods (74) is connected to the connecting seat (71), and the end of each of the plurality of first push rods (74) away from the connecting seat (71) is connected to the connecting shaft (72). A plurality of second push rods (75) are spaced apart on the connecting shaft (72), and the two ends of the plurality of second push rods (75) are respectively hinged to the connecting shaft (72) and the mounting plate (6); the length of the second push rod (75) is greater than the longitudinal distance between the mounting plate (6) and the connecting shaft (72); The drive unit (76) is used to drive the connecting seat (71) to move horizontally.

3. The polyurethane foam board production ejection device according to claim 2, characterized in that, The lifting component (7) also includes an auxiliary spring (77), which is sleeved on the first push rod (74). The two ends of the auxiliary spring (77) abut against the connecting seat (71) and the sliding sleeve (73) respectively.

4. The polyurethane foam board production ejection device according to claim 2, characterized in that, The driving component (76) is a first push cylinder, which is fixed on the bracket (1), and the telescopic end of the first push cylinder is connected to the connecting seat (71).

5. The polyurethane foam board production ejection device according to claim 3, characterized in that, Two second push cylinders (8) are symmetrically arranged on the left and right sides of the bracket (1). The rear end of the box cover (3) is hinged to the mold box (2). The cylinder seat of the second push cylinder (8) is hinged to the bracket (1). The telescopic end of the second push cylinder (8) is hinged to the telescopic box cover (3).

6. The polyurethane foam board production ejection device according to claim 5, characterized in that, The driving component (76) includes a roller (761) and a plurality of connecting rods (762). The plurality of connecting rods (762) are arranged in parallel at intervals. One end of the plurality of connecting rods (762) is connected to the box cover (3), and the other end of the plurality of connecting rods (762) is rotatably connected to the roller (761). The connecting seat (71) is located on the moving path of the roller (761).

7. A polyurethane foam board production ejection device according to claim 4 or 6, characterized in that, It also includes several guide sleeves (53), which are disposed on the bracket (1), and a slide rod (5) is slidably inserted inside one of the guide sleeves (53).

8. The polyurethane foam board production ejection device according to claim 7, characterized in that, The mounting hole (21) includes a large-diameter hole (211) and a small-diameter hole (212) that are connected, with the large-diameter hole (211) located above the small-diameter hole (212); The pusher (4) includes a large-diameter column (41) and a small-diameter column (42) connected together. The large-diameter column (41) is located at the upper end of the small-diameter column (42). The large-diameter column (41) is fitted with the large-diameter hole (211). The small-diameter column (42) is fitted with the small-diameter hole (212). The lower end of the small-diameter column (42) is fixedly connected to the slide rod (5).

9. A polyurethane foam board production ejection device according to claim 8, characterized in that, The large-diameter column (41) is provided with an annular mounting groove (43) at one end near the small-diameter column (42), and a sealing ring (44) is provided in the mounting groove (43).

10. A polyurethane foam board production ejection device according to claim 9, characterized in that, It also includes spring-loaded hand clips (9), and the box cover (3) and the mold box (2) are fixed to each other by a plurality of the spring-loaded hand clips (9).

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